Creating custom geometry elements like AR glasses or Waves

Hello everyone! I’m new to threejs, so please guide me as to whether there is a way to create the deformable particle background object animation with shape-changing. Here is the link
and the outcome I want is similar to the website scrolling and changing the 3d objects. If you could let me know of any blogs or tutorials that would help.

Do you know these examples from the Collection of examples from ?

2022 eXtended eXamples

2021 eXtended eXamples

2022-11-18 12.46.46